Bug 1537792

Summary:	dpkg: directory traversal via /DEBIAN symlink
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	andrew, sergio, vanmeeuwen+fedora
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-09-25 06:50:13 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1537793, 1537794
Bug Blocks:

Description Laura Pardo 2018-01-23 21:51:18 UTC

A flaw was found dpkg which allows an attacker to perform a directory traversal by extracting with "dpkg-deb --raw-extract" a crafted .deb file with a /DEBIAN symlink 

Reference:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=879982

Patch:
https://anonscm.debian.org/cgit/dpkg/dpkg.git/diff/?id=5003d76

Comment 1 Laura Pardo 2018-01-23 21:51:46 UTC

Created dpkg tracking bugs for this issue:

Affects: epel-all [bug 1537794]
Affects: fedora-all [bug 1537793]